Filling-thread-cutting mechanism for weft-replenishing looms.



A. F. MURBLL & A. A. GORDON, JR. FILLING THREAD CUTTING MBGHANISM FOR WEPT REPLEMSHING Looms.

APPLICATION FILED JAN,18.1912. 1,070,979, Patented Aug. 19, 19M.

2 SHEETS-SHEET 2,

f if! #iff A 1"?5160v 's y f 1 HIE STAAENT OFFioE,

LFRED F. IVIORELL AND ALBERT A. GORDON. JR.. OF XVORCESTER. MASSACHUSETTS,

ASSIGNORS TO CROMPTON @L KNOVLES LOOB'I WORKS, A CORPORATION OF MASSA- FILLING-THBEAD--CUTTING MECHANISM FOR WEFT-REPLENISHING LOOMS.

Specification of Letters Patent.

Patented A110'. 19, 1913,

Application led January 18, 1912. Serial No. 671,966. l v v 'bin which is to be removed from the active shuttle. and to hold the end of the filling thread which extends from the cutting mechanism to the selvage of the woven vfalo'- ric, to cause it to engage the filling fork and move it into an inoperative position, to

prevent the stopping of the loom,

` '1`he object of our invention is to provide a .filling thi'ead cutting mechanism of sinr vple construction, which is adapted to be applied to and used on looms of the class referred to, and preferably connected with and put into operative position by some of the parts of the transferring mechanism on the magazine, which may be of any usual and well known construction.

Our invention consists in certain novel f-atures of construction of our improvements as will behereinafter fully described.

'e haveonly shown in the drawings our improved filling thread cutting mechanism, combined with some of the parts of a loom, sufficient to enable those slrilled in the art to understand the construction and opera tion thereof.

Referring to the drawings: Figure 1 is a section, on line l. 1. Fig. 2, loolrir )j in thc direction of arrow a saine figure, showing our' improvements in filling` thread cutting mechanism, coiiihined with thebreast beam. and the lay of a loom. Fig. 2 a plan view of the parts shown `in Fig. l, looking in the direction of ari-ow 7), saine figure. The brolteiilines represent the filling fork slide. and filling forli, which is engaged by the filling thread; these parts are not shown in the other figures. Fig. 3 is a sect-ion, on line 25, 3, Fig. 2, looking in -the direction'of .a stud or bolt 1T.

arrow e. same figure, and, Fig. 4 corresponds to Fig. 3, but shows the thread cutting mech7 aiiisin in its operative position..

In the accompanying drawings, 1 is the breast beam. 2 the lay, t-lie reed, and 4 the hand rail, Figs. 3 and 4.

5. see Fig. 2, is the end 0f a shuttle box, with a shuttle G therein, from which the filling thread G extends to the selvage of the woven fabric, not shown. of the feeler fork slide, carrying the feeler fork, shown by broken linesin Fig. 2is mounted on the breast beam, and has in .this instance secured thereto by bolts 8,'a stand S, which is provided with bosses 8 and 8', which areadapted to form bearings for an inwardly extending bar 9. The outer reduced end 9' of the bar 9 is guided in the .boss S.

A helically coiled expansion spring 10 encircles the reduced portion 9, Aand bears at one end against the boss 8, and at its other end against the enlarged portion` of the bar 9. A key 11 is secured by a screw 12 to the boss 8', and enters a groove 9" in the bar E), which in this instance is slidingly held within the boss 8. The key 11 prevents the bar 9 from rotating or turning. The expansion spring 10 acts to move inwardly the bar 9, as shown infFig. 4, when it is released, until a pin 13, which extends transversely through the` bart), v engages the boss 8', as shown in Fig.

The bar 9 is providedat its` inner ,end with a head portion 9a, which in this` in- ,siaiic'e extends downwardly and has secured thereto the lower .stationary cutting blade ll of the cutting mechanism. The upper cutting blade 15 is secured to an arm `16,

The stand .7

which has its hub 1G pivotally vmounted on i The bolt 1T .extends through the head portion Qa, and is secured therein by a nut 1S. A spring .blade 19 ,is

in this instance adjustably securedat ioneI` end, see Figs. 3 and 4, to thehead portion 9a, by the nut 1S. Said spring blade l19 ex-vi tends downwardly and below the lieadpOr-f tion in, and then upwaidly'again andan, thc opposite side, as shown at 19', Fig. l. rthe end 19 of the spring 19 is adapted to vieldingly ,engage the lower surface Aof "a longitudinally extending projection. Gf. on

the arm t6, and form a clamping and holdincr device for the cut. end of the filling thread G', extemling' from the selvagfe of the woven fabric, as iown in Fig. 2. n

A helically coiled contraction spring' 20 hns one end connected to a lng lijf" on the arm lo, see Figs. l and 2, and its other end to a lug il ou the head 9, and acts to open the cuttingI jaws, shown in Fig. e-, when the arm 16 is released, as hereinafter described. Vintending downwardly from the hub 16 of the arm 1G, is an arm 16a; the lower end oit". said arm 1G- is provided with a notched portion 16a. which is adnoted to be engnged by the notched ond 2l of an arm 2l, which has its hul) il. see Fig. 2. pivotally mounted on :i

:stud 22 on a. stand 23. A helically coiled torsion spring 2l, see Fig, 2, which has one e l connected to :i collar 25, fistI on the stud 22, and ite other end connected to the hill; 2i of the lever 2l, acts to yieldingly nuove upwardly the arm 2l, to the position shown in Fig. 3, to engage the notched end 16a of the. lever 1G, and hold the cutting' mechanism in ite. inoperative position. rlhe second erm 2l on the lever 2l, has n stud 21" thereon, which extends looselj,7 in slot 26 in the rod head 2). which is ndjnstalily connect-ed tf the lower end of a vertically extendihgiV rod or wire 27. rhe upper end of the wire 27 has connected thereto operating means, not shown, preferably on the transfer-rer mech anism on the magazine, not shown. which may be of any usual constructiim. The op crnting means1 cause, upon the practical haustion of n bohhin, the arm 21", throngl'i thc upward movement of the wire 2T, to operate and move the lever 2l, from the. position shown in Fig. 3, to the position shown in Fig'. l, to release the arm 16, and allowtlic expansion Spring l0, to move the cuttingr mechanism forwardly and toward the lav. as Shown in Figi: 'The end o? the lever 2l has a. ffanrshf-zped or curved projection 2l thereon, Awhich is adapted as the luy motifs forward, to engage the free ci .i of a curved shaped wire 2S, see Fig. to more dtiivnnfnrdly said wire. as shtn'n in snid Fig. l. The other end of the wire 2S is secured h v :i screw in a lng o Y n collar 29, which in this instzmcc A; mounted on the protector rod wire 3l is occured at one end h v a 3l on a collar 31"", which in tn" in a lug .s instance, is tot f zut-.tinted on the protector rod St. The irc 3l han its lper end 'oem rearwardiy and extending toward the See lig. t'. The wire ifi-c la groove c in the up lay. and i to Vforme, l i mosfementy ot the wire I- 4. engagf's the filling` (3 the ope-n f des of 'the I mism ,un rcznivar.. poni-tion, und die nim 18a 1s engaged by the yi' ldzng engagement with each other, to move as one collar, or to allow one collar to move independently of the other, by a helio calli;Y coiled expansion and torsion spring SL .eee .F i2, which encircles the protector rod lil() and hns one end connected to n. collar 33, lsecured on the rod il() hy a screw 33', and its other end connected to the collar 31". The spring acts to hold the t-wo collars 29 and 31 in yielding engagement with each other, to move ns one collar, and also acts to rotate said collars on the protector rod 30, to return the wires 28 andto their normal posit-ion, shown in Fig. 3.

ily means-olf the interlocking collars 29 and 31, and the Spring 32, formino: a giveL way connection, it a shuttle extei is above the wire 3l, and prevents the raieingof said wire, the collar 20, rotntedby the downward movemcntcf the wire 28, engaged by the end 2l on the lever 2l, as the lay moves forward, will engage and move the collar 31 longitudinally on the shaft 30 against the action of the .spring 32 and allowing the wire to remain Stationary without any breakage oi the parts.

llt-*hen in the operation of the loom, the teeler detector mechanism indicates for a change of filling, through the rod or wire 27 the lever 2i is moved downwardly, as shown in F 4, :ind disconnected from the lever 15a, of the cutting mechanism,` allowing the cutting mechanism, through the spring 10, to he moved to its forward position, and the spring to raise the arm 16, carrying the cntterhladc 15, and as the lay moves forwnrd` the engagementof the wire. 28 with the com-shaped end 2l.a on the lever 21, rocks the collars 31 and 2S) on the rod 30, against the fiction of the spring 32, and raises the hooked end 3l on the wire 31., to can;V it to engage and positively carry the t between the open jaws of the cutting mechanism. The Vcontinued forward movement ot the ley causes the projection 3l ihereiiin to eng NYe the nrm 16a, see Fig. 3, and causes the arm lo Vcari-,vingr the cutting blanc to close and sever the tillingj thread extending between the cutting blades., as shown Fig. 2, and also to clamp and hold between the projection 16 and the end 19" of the spring 1D, the end of the lilling thread ext-ending from the selmn'e of' the fabric.` The tant filling thread. as the lcv moves forl ward. will engage the filling' fork of the sitie tilline; stop motion, shown 'i ii File'. 2, und tilt id inni, relive poe i:

'f oit the loom. the extreme 'torn'enicnt of the lay. the cutting merli.Y

hy hrole forl, and l tc jnrevtmt t.

lever 21, moved upwardlyT by the spring 9.4, and held by said lever, as shown in Figs. 1 and 3.

It will be understood that the details of construction of our improvements may be varied if desired.

l-Iaving thus described our invention, what we claim as new and desire to serrure by Letters Patentis:

l. n a filling thread cutting mechanism for weft replenishinglooms, two cutting blades mounted on a movable member, and said member, movable toward and away from the lay, a spring for moving,Y said membei' and bladef` into operative position, means to close said blades, to sever the lling thread, and to carry said member and blades into an inoperative position, means to lock said member and blades in said inoperative position, against the action of said spring, and automatic means to release said member and blades, to allow them to move into op erative position, and yielding means, to engage and Carry the. filling thread between said blades.

2 ln a filling thread cutting mechanism for weft replenishing looms, two cutting blades mounted on a movable member, and said member, movable toward and away from the lay, a spring for moving said mem` ber and blades into operative position, means to close said blades, to sever the illing thread and to carry said member and blades into an inoperative position, means to lock said member and blades in an inoperative position, against the action of said spring, and automatic means to release said member and blades, to allow them to move into operative position, and a device to engage and carry the filling thread between said blades, said device conneeted with and operated through a give-way connection, to allow said device to remain stationary and prevent breakage.

ALFRED F. MORELL.

ALBERT A. GORDON, JR.,r

Witnesses:

JOHN C. DEWEY, MINNA HAAs. 

